result object looks like this.

I think that should work, though I don't really ever work with raw search results objects.

I want to pass a result object to the map function in a map.reduce script so the map function can extract the data it requires to generate other transactions using fields from the result object

if this is a map/reduce script, then parse your value

If you want all search results to be sent to map() you need only return the search itself from getInputData()

otherwise the id and record type should have a value unless using summary columns

What do you mean by parse the value?

mapContext.value is a string

parse to an object then, I'll test that now

that is one way MR is more pain than Scheduled scripts.